isEmpty(QJSON_INSTALL_DIR) {
    message("QJson's install dir was not defined in QJSON_INSTALL_DIR var!")
    # You can define here the QJson's install dir.
    # win32:QJSON_INSTALL_DIR = "C:/QJson"
    # unix:QJSON_INSTALL_DIR = "/usr/local"
    # or just use: qmake QJSON_INSTALL_DIR="/path to QJson install dir/"
}

isEmpty(INSTALL_PREFIX) {
    message("Install dir for QFacebook lib was not defined in INSTALL_PREFIX var!")
    # win32:INSTALL_PREFIX = "C:/QFacebook"
    # unix:INSTALL_PREFIX = "/usr/local"
}
